磷化钼作为同时加氢脱氮、脱硫和降烯烃催化剂的研究

磷化钼作为同时加氢脱氮、脱硫和降烯烃催化剂的研究

Transition-metal molybdenum phosphides were prepared by direct reduction of an amorphous phosphate precursor in hydrogen at relatively low temperature (650 ℃). XRD (X-ray diffraction analysis) measurements showed that pure molybdenum phosphide formed after the reduction with H2. The reactivity was determined in a continuous-flow microreactor at a H2 pressure of 3.0 MPa. A sample of prepared molybdenum phosphide catalyst diluted with γ-Al2O3 (20% phosphate precursor) was used for simultaneous HDN (Hydrodenitrogenation), HDS (Hydrodesulfurization) and HDY(Hydrogenation of aromatics). The influences of space velocity, flow rate of hydrogen, reaction time and temperature on hydrotreating performance were studied. Pyridine, thiophene and cyclohexene were used as model compounds, their contents were respectively 5%, 5% and 20%. Cyclohexane was used as the solvent.

作 者： 赵天波 李凤艳 孙桂大 李翠清 ZHAO Tian-bo LI Feng-yan SUN Gui-da LI Cui-qing   作者单位： Department of Applied Chemistry, Beijing Institute of Petrochemical Technology, Beijing 102617, China  刊 名： 石油学报(石油加工)  ISTIC EI PKU 英文刊名： ACTA PETROLEI SINICA(PETROLEUM PROCESSING SECTION)  年，卷(期)： 2003 19(1)  分类号： O643.38  关键词： molybdenum phosphide   catalyst   hydrodenitrogenation   hydrodesulfurization   hydrorefining  

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